Criticism of Starmer has grown since the scandal came to light last week. There are now calls for the Prime Minister to resign, and he is accused, among other things, of misleading Parliament by previously stating that procedures had been followed in Mandelson's appointment.
The Prime Minister has claimed that he was not informed that Mandelson's security clearance had not been approved.
Mandelson was fired when his close contacts with convicted sex offender Jeffrey Epstein were revealed last year.
